Finding the Fourth Proportional to 73,905.75, 101,990.07 and 40,371.75
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Solution
The fourth proportional to 73,905.75, 101,990.07 and 40,371.75 is: 55,713.09
Step by Step Solution
- Step 1: Write the proportion equation
73,905.75 : 101,990.07 = 40,371.75 : x - Step 2: Convert to fraction form
73,905.75/101,990.07 = 40,371.75/x - Step 3: Cross multiply
73,905.75x = 101,990.07 × 40,371.75 - Step 4: Simplify right side
73,905.75x = 4,117,517,608.52 - Step 5: Solve for x
x = 4,117,517,608.52/73,905.75 - Step 6: Final answer
x = 55,713.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.